Mechanical movement



Jan. 9, 1923.

' 1,441,391 H. G, AINSWORTH. CHANICAL MovEmEN FILED APR. 18, 1921. 4 ssssssssss ET I Jan. 9, 192% 1,441,391

' H. G. AINSWORTH.

Mecmmcm. Movemsm.

FILED APR. 18. I92]. 4 SHEETS-SHEET 4 Patented Jan. 9, 1923;

uniso- HARRY e. ernswoarn, or KEN'I'LAND, iNDIANA.

I MEGHANICAL iviovnmnn'r.

To al l whomz'tmayconcem:

Be it known that I, Hanna G. Amswonrn, a citizen of theUnited States, re-

siding at Kentland, in the county of Newton and State of Indiana, have invented certain new and useful.Improvements in Mechanical Movements, of which the fol lowing is a specification, reference being had to the accompanying drawings, and to the reference charactersmarked thereon, which form a part of this specification.

This invention relatesto improvements in mechanical movements adapted for actuat ing garage doors. v

The object of the invention is to provide an actuating mechanism that may be set into operation by turning or throwing a switch in an electric circuit and thereby move the door, whether it be a door that is raised and lowered, or one that has a sliding movement.

I Another object of the invention is to produce a relatively cheap operative device, which is mounted as a unit on a frame and which may therefore be readily installed without the aid of skilled labor, and one which is not liableto get out of order.

For the accomplishment; of these and other objects which will become manifest as I proceed with my specification, the in-' vention consists in the devices and combination of devices herein illustrated, described and claimed.

While the mechanism is applicable .to v'arious uses, I have chosen to illustrate it as adapted to the operation of the doors of a.

arage;

In that form of the invention shown in the drawings, Fig. 1 is a side elevation of a device embodying my invention, being shown in section.

Fig. 2 is a side View of a detail, shown in a different position from' its position in Fig. l. i

Fig. 3 is a vertical sectional view of a detail taken upon the plane of the line 3-3.

of Fig. 4.. l Fig- 4 is 3.

Figs. 5 and 6 are side views showing modifiedapplications of attachment to doors. Figs. '7 and 8 are diagrammatic views of theelectric circuitpshowingthe circuitopen in Fig. 7

and closed in Fig. 8. Fig; 9 isa detail showingoperative gears in the electric circuit. i

The mechanism is mounted upon a cast the door top plan view the device.

, at 37 to the segmental gear Application filed A rn s, 1921- Serial No. &62335.

metal frame A, which may be securedto a stationary support through thebolt holes 1, or in any other suitable manner.

Referring now more particularly to Figs. 1 and 2, the door to be raised and lowered by this mechanism is shown at D, and the motive power is indicated by the motor M,

suitably mounted upon the platform 2 of the frame A. p p

'hfounted in suitable bearings 23 on ,f'ihe other end of the frame is a driven shaft 4%, and upon this shaft are a pair of sleeve pulleys 5, indicated bydotted lines, which pulleys are protected by a housing Goa the frame A. Cables or chains 7 secured at one end to, the pulley 5, are secured at theirv other end to the top of the door D. The raising or lowering of the door follows when the shaft 1 is rotated. Mounted upon the end of theshaft 1- is a spur pinion 8, its teethbeing in mesh with the teeth of a segmental gear 9.

Depending from the under side of the frame is a bracket 10 secured to the frame by any suitable means, as by bolts 11, and braced by the bar '12. A stub shaft 13 1s mountedat one end in the bracket 10, The

segmental gear 9 is pivotally mounted at 141' 'upon the stub shaft 13 and swings about said shaft as a fulcrum. I I

Journaled in bearings 15 upon the frame A is the main driving shaft S, and in suitable bearings 16 is a stubshaft 17, and in bearings 18 is a stubshaft 19. The setof bearings 16 and 18 arein standard 20 upon the side members 21,22, of the frameA. Upon the shaft 28 of the motor M is a small belt pulley 2 1 which is connected with a belt pulley 25 on the stub shaft 19 .by a belt 2 6 Motion is thus transmitted from the motor to the shaft 19 and the spur pinion 27 thereon. This. pinion 27 meshes with the teeth of a spur gear 28 on the shaft 17 and drives saidv gear 28. A spur pinion 29 is also mounted upon the shaft 17 and meshes with alarge spur gear 30 mounted to rotate upon'the shaft S.

v Upon the end of the shaft Sis acrank U, its free end being pivotally attached at 36 to one end of a connecting linkL. The other end, of the link L is pivotally attached 9. Themotor M is in an electrical circuit containing-- an automatic three-way switch 4:1 and at least two o eeoperatin switches 42, 4L3,-the -swit'ch 43 being shown as a four-way switch. The switch 41 is mounted in circuit on the frame member 22, the switch shaft 44 being parallel with'the shaft S. The shaft44 is provided with; a." spur.

gear 45, which is in mesh with the spur pinion 46 on the shaft S. The gear has twice the number of teeth that are provided for the pinion 46. Y In Fig. 7, the switch 41 is shown on contact points 47, 47, and the switch 42,011 contact points 48, 48. The switch 4-8 is shown open, by joining contact points 49,150, and

In Fig. 8, the switch43 has been shifted so that the line containing contact points 50, 52 is closed, and the line containing contact points 49, 51, is open. Thus the cur rent will run from the line 53 to the motor M, from thence byline 54- through switch 41, to line 55, switch 43, line 56, switch42 and line 57. back to the source ofelectrical the circuit and switches being as iiniicated in Fig. 7, and the mechanical carts being switch 41, a quarter of a turn only.

connecting gears, the the main shaft 30. The rotation of the main energy. throwing the switch 42 or the switch 43 or any other switch that may be in circuit.

From the foregoing it will he understood that the operation of the-parts as follows:

positioned as shown in Fig. 1,thatisito say, with the doors D raised to their upper-f most position, the operation of say, the switch '43 from the position shown in Fig. 7 to the position shown in Fig. 8, will close thecircuit. The current will of course in stantly cause the rotation of the motor, which in turn through the belt connections will operate the shaft 19, and throughthe shaft will cause the crank C to swing from the position shown in Fig. 1 to that shown in Fig. 2. -The current through the link L i will likewise rock the segmental gear 9 from ,gearhas reached the limit of its throw, the

circuit must be automatically broken. This I accomplish by reason of the factthat the rotation of the shaft S one-half of a will rotate'the shaft 44 of the automatic ratio of the gearing 45 and 4 6 being-two toone. This turning'of the switch shaft'44 willthrow the switch ,41 from the contact points 47, 47, into theposition shown in:

The circuit may be openedby shaft 17, andyfinally I turn .The

I dotted lines inFig. 8, into contact with the points 58, 58, thus breaking the circuit, with the result that the motor instantly stops.

The" contact point 58 is now connected with the 'line 59, contacts 51, 49, and line'60. To

again operate the mechanism and raise the by the dotted line in 8, whereupon by the rotationof the shaft S one-half of a turn, the gears 45, .46, will again actuate the switch shaft 44 and'cause the switch 41 to leave contacts 48 and close contacts. 47, thus again breaking the circuit. These various electrical features will be understood by those skilled in the art and neednot be further elaborated.

Of course, it will be understood that where my mechanism is applied inside of a garage cooperate the doors, one of the switches 42 or 43 as the case may be,will be located inside of thebuilding and one outside of the building. The operation of either switch causes the mechanism to raise the doors if they are lowered, and to lower the doors if they happen to be raised.

In the modification shown in Fig. 5 the door is provided with a counter-balancing weight Wand the cables 7 instead of being attached at one endto the sheaves or pulleys 5, are first trained over pulleys 38 secured in bracket bearings 39 to the ceiling 40,then wrapped about the sheave pulleys 5 and finally secured attheir ends to the counterbalancing weight W;

In the modification showninFig. 6, the sheave pulleys 5 and the cables 7 are dispensed with and the door D is'suspended' by brackets 63 from a horizontally disposed carrying rail 64 to travel thereover. In such case, the top ofthe door D. is'provided with a rack bar 65, the teeth of which. en-- gage the under side of and mesh with the teeth of a gear 66 mounted on the shaft 4.

" I claim asmy invention? l. A mechanical movement comprising a driven rock shaft. a spur' pinion thereon. a segmental gear in meslrwith the],)inion, a rotatable drive shaft, a rotatable crank on the drive shaft, a; link arm operatively connecting' the crank and the segmental gear,

half revolution at a tim 2. A mechanical movement comprising a driven rock shaft, a 'spur'pinio n thereon, a segmental gear in mesh with the pinion, a

and meansfor operatingthe drive. shaft a rotatable drive shaft,a* rotatable'crank on the drive shaft, a'link arm operatively connecting the crank andthe segmental gear, and means foroperatingthe drive shaft ahalf revolution ata time, said means-including a motor and operative connections between the motor and the drive shaft.-

' 1O shaft for operating the motor, and means 3. A mechanical movement comprising. a driven rock shaft, a spur pinion thereon, a

segmental gear in mesh with the pinion, a

rotatable drive shaft, a rotatable crank on the drive shaft, a link arm operatively connecting the crank and the segmental gear, a rotatable gear mounted on the drive shaft, a motor for operating the drive shaft one half revolution at a time, complemental members betweenthe motor and the drive for controlling the latter.

a. A mechanical movement comprisinga driven rock'shaft, a spur pinion thereon, a segmental gear in mesh with the pinion, a rotatable drive shaft, a rotatable crank on the drivesh'aft, alinkarm operatively connectin the crank and the se mental ear b b t: 7

and means for operating the drive shaft a; half revolution at a time, said means includ-. ing an electriccircuit and a motor in said circuit. I

5. A mechanical movement comprising a driven rock shaft, a spur pinion thereon, a segmental gear in mesh with the pinion, a rotatable drive shaft, a rotatable crank on the drive shaft, a link arm operatively connecting the crank aiidthe segmental gear,

means for operating the drive shafta half revolution at a time, and a driven element operatively associated With the driven shaft.

' thereon, a rotatable drive shaft in said bearings, an extension tableat one end of and integral with the frame, a motor thereon, shaft bearings. at.tlie other end of the frame, a rocking driven shaft in said last mentionedbearings, an upright standard on each side member, shaftbearings in each standard, a shaft in said standard bearings in operative connection With the drive shaft, a bracket secured to and depending from the frame a bearin in the bracket a rotatable a a shaft in said bearing, a gear segment on the shaft, a rotatable crank on the drive shaft operatively connectedto the gear-segment, a P1111011 on the rocking driven shaft and in operative connection with thecrank, the bores of theseveralshaft bearings heingparallel and extending transversely of the frame,

and meansfor actuating the drive shaft one half revolution at a time. U I

8. Ina mechanical movement of the class described,.a cast metal frame havingval pair of side members, bearings therein for a drive shaft, anextension table at one end" of the frame adapted to support a motor, bearings at the other end of the frame for a driven shaft, an upright standard on each side member. shaft hearings in each standard, a

bracket depending from the frame and having a journalbearing therein, thebores of the several shaft bearings being parallel and extending transversely of the frame.

9. A mechanical movement comprising a rotatable shaft, motor driven means for ac tuating' said shaft a half revolution at a' time, adriven rock shaft, the longitudinal axes of the shaftsbeing parallel, a pinion on the rook'shaft, a rocking segmental gear in on the driving shaft, a link pivotally connecting the'crank arm and the segmental gear, and means for operatively connecting the rock shaft to its Work.

10. A mechanical movement comprising a mesh With the pinion, a rotatable crank arm i rotatable shaftfinotor driven means for ac? tuating said shaft ahalf. revolution at a time, a driven rock shaft, the longitudinal axes of the shafts being parallel andin different horizontal planes, a pinion on the rock shaft, a rocking segmental gear in mesh with the pinion, a rotatable crank arm on 1 the driving shaft, a link pivotallyv connect-. ing-the crank arm and the segmental gear,

and means for' operatively connecting the rock shaft to its Work.

In testimony, that I claim the foregoing as my invention I afiix my signature, in the ion presence of tWo" itnesses, this. ltthd'ay of I April, 1921'. p p

I HARRY G. AINSWQRTH.

Witnesses: I

H. W. 'DENNEY, I GEO. J. BOONE. 

